<template>
    <div class="jd-search-history">
        <div v-if="historyList.length" class="history box">
            <div class="title">
                <span>最近搜索</span>
                <van-icon @click="clearHistoryHandler" class="del" name="delete-o" />
            </div>
            <ul class="content">
                <li v-for="item in historyList" @click="clickHandler">{{ item }}</li>
            </ul>
        </div>
        <div class="hot box">
            <div class="title">
                <span>热门搜索</span>
                <span @click="isShow = !isShow">{{ isShow ? '隐藏' : '显示' }}</span>
            </div>
            <ul v-if="isShow" class="content">
                <li v-for="item in hotList" :key="item.wordid" @click="clickHandler">
                    {{ item.keyword }}
                </li>
            </ul>
            <div v-else class="hid">
                已经隐藏搜索发现
            </div>
        </div>
    </div>
</template>
  
<script setup lang="ts">
import { ref, onMounted } from 'vue'
import { useRouter, type Router } from 'vue-router'
// 导入请求 api
import { hotSearchApi } from '@/api/goods'
// 导入对应的 ts 接口
import type { MyHotSearchItem } from '@/config/interface'


// 历史记录相关
const $router: Router = useRouter()

// 需要一个数组保存历史记录
const historyList = ref(JSON.parse(window.localStorage.getItem('history') as string) || [])

// 准备一个变量, 控制 隐藏 显示
const isShow = ref<boolean>(true)

// 按钮点击的时候跳转到分类页面
const clickHandler = (e: Event) => {
    const text = (e.target as HTMLElement).innerText

    // 需要跳转路由, 需要携带 text 去到商品列表页
    $router.push({ path: '/list', query: { search: text } })
}

// 点击历史记录边上的删除按钮
const clearHistoryHandler = () => {
    // 删除 lcoalStorage 内的 history 一项
    window.localStorage.removeItem('history')
    historyList.value = []
}



// 热门搜索相关
// 准备一个变量保存热门搜索列表
const hotList = ref<MyHotSearchItem[]>([])

// 挂载完毕后请求数据
onMounted(async () => {
    const res = await hotSearchApi()
    hotList.value = res.data
})


</script>
  
<style scoped lang="scss">
.jd-search-history {
    height: 100%;
    box-sizing: border-box;
    padding: 15px;

    >.box {
        margin-bottom: 30px;

        >.title {
            display: flex;
            justify-content: space-between;

            .del {
                font-size: 20px;
            }
        }

        >ul {
            display: flex;
            flex-wrap: wrap;
            margin-top: 5px;

            >li {
                background-color: #c4c4c4;
                color: #fff;
                padding: 2px 3px;
                margin: 0 2px;
            }
        }

        >.hid {
            height: 100px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
    }
}
</style>
  